<script setup>
import {getCategoryFilterAPI,getSubCategoryAPI} from '@/apis/category'
import {onMounted, ref} from 'vue'
import { useRoute } from 'vue-router';
import GoodsItem from '../Home/components/GoodsItem.vue';

// 获取面包屑导航数据
const categoryData = ref({})
const route = useRoute()
const getCategoryData =async ()=>{
    // 这里要传id 要用useRoute
  const res = await  getCategoryFilterAPI(route.params.id)
  categoryData.value=res.result
}

onMounted(()=>getCategoryData())

// 获取基础列表数据渲染
const goodList =ref([])
const reqData = ref({
  categoryId: route.params.id,
  page: 1,
  pageSize: 20,
  sortField: 'publishTime'
})
const getGoodList =async ()=>{
   const res=await getSubCategoryAPI(reqData.value)
   console.log(res);
   goodList.value=res.result.items
   
}

onMounted(()=>getGoodList())
// tab切换回调
const tabChange=()=>{
  console.log('tab切换了',reqData.value.sortField);
  reqData.value.page=1
  getGoodList()
}


// 加载更多
const disabled =ref(false)
const load =async  ()=>{
  console.log('加载更多数据咯');
  // 获取下一页的数据
  reqData.value.page++
   const res=await getSubCategoryAPI(reqData.value)
  goodList.value=[...goodList.value,...res.result.items]

  //加载完毕，停止加载
  if(res.result.items.length===0){
    disabled.value=true
  }

  
}
</script>

<template>
  <div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${categoryData.parentId}` }">{{categoryData.parentName}}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{categoryData.name}}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
    <!-- tab切换 -->
      <el-tabs v-model="reqData.sortField" @tab-change="tabChange">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div class="body" v-infinite-scroll="load" :infinite-scroll-disabled="disabled">
         <!-- 商品列表  用之前封装的GoodsItem-->
          <GoodsItem v-for="goods in goodList" :goods="goods" :key="goods.id"/>
      </div>
    </div>
  </div>

</template>



<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>